US8960068B2 - Floor protection device for vehicle cab - Google Patents

Floor protection device for vehicle cab Download PDF

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Publication number
US8960068B2
US8960068B2 US12/737,096 US73709609A US8960068B2 US 8960068 B2 US8960068 B2 US 8960068B2 US 73709609 A US73709609 A US 73709609A US 8960068 B2 US8960068 B2 US 8960068B2
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Prior art keywords
cab
caissons
protection device
walls
compartmented
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US12/737,096
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US20110079134A1 (en
Inventor
Jacky Jacquemont
Christian Noel
Xavier Poirmeur
Benoit Bettencourt
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Knds France
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Nexter Systems SA
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Application filed by Nexter Systems SA filed Critical Nexter Systems SA
Assigned to NEXTER SYSTEMS reassignment NEXTER SYSTEMS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BETTENCOURT, BENOIT, JACQUEMONT, JACKY, NOEL, CHRISTIAN, POIRMEUR, XAVIER
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H7/00—Armoured or armed vehicles
    • F41H7/02—Land vehicles with enclosing armour, e.g. tanks
    • F41H7/04—Armour construction
    • F41H7/042—Floors or base plates for increased land mine protection

Definitions

  • the technical scope of the invention is that of floor protection devices for a vehicle cab and namely the floor of a military vehicle.
  • Patent DE19913845 discloses such a protection device.
  • the aim is to absorb part of the blast effect of the mine through the deformation of the armour plate whilst leaving a free space enabling the plate to deform without impacting the floor.
  • the deformable linking means also absorb part of the energy of the shock.
  • the device described by this patent does not provide sufficient protection for the vehicle floor.
  • the energy absorption capacities of the linking means are, in fact, insufficient.
  • the solutions described by DE19913845 do not enable the free space located under the vehicle to be used to house equipment or components of the vehicle itself.
  • Patent DE19935573 discloses a protection device analogous to that proposed by DE19913845.
  • This device comprises a deformable plate positioned under the vehicle floor to which is it connected by longitudinal beams with a layer of shock absorbing material being positioned between the beams and the vehicle.
  • the protection capacities of such a device are also insufficient.
  • the deformable plate is provided with mobility means that may be projected by the shock against the vehicle floor, and the beams are directly into contact with the floor supports and thus communicate the shock received directly to them.
  • the aim of the invention is to propose a device that firstly provides reinforced protection with a minimal mass for a vehicle floor, and secondly enables the free space under the vehicle floor to be used without deteriorating the protection efficiency.
  • the invention relates to a floor protection device for a vehicle cab, device comprising at least one armour plate that is arranged at a distance from the cab floor and which is connected to the latter by deformable linking means, device wherein at least one of the deformable linking means is constituted by a compartmented caisson, that is fastened to the cab on a substantially vertical lateral partition of the latter, the compartmented caisson comprising at least two walls that are substantially perpendicular to the armour plate and which are integral firstly with a lower wall on which the armour plate presses and secondly with an upper wall which presses on the cab, the walls having dimensions such that they buckle on impact.
  • the walls will be substantially perpendicular to a lateral partition.
  • the protection device may comprise at least two caissons integral with a same lower wall, the caissons being positioned at a distance from one another and separated by a space.
  • the caissons are further fastened to a same lateral plate, the caissons, the lateral plate and the lower wall thus forming a chamber.
  • the lateral plate may incorporate at least one opening giving access to the space separating the compartmented caissons.
  • the opening may be blocked by a hatch or cover, the space thus forming a storage case.
  • the floor protection device may comprise at least three caissons delimiting two spaces.
  • the lateral plate may form an angle with respect to the armour plate.
  • the chamber may furthermore be positioned such that it incorporates a plane upper rim which extends towards the outside of the vehicle beyond the lateral partition, such plane upper rim being parallel to or indistinguishable from the upper walls of the caissons.
  • At least one caisson is filled by an energy absorbing material.
  • FIG. 1 is a side view of a light armoured vehicle equipped with a floor protection device according to a first embodiment of the invention
  • FIG. 2 a is a cross section view of the previous Figure along the plane referenced AA in FIG. 1 ,
  • FIG. 2 b is a perspective view of the caisson alone
  • FIGS. 3 a and 3 b are partial views of a second embodiment of the invention, FIG. 3 b being a perspective view of the chamber alone,
  • FIGS. 4 a and 4 b are partial views of a third embodiment of the invention, FIG. 4 b being a perspective view of the chamber alone.
  • FIG. 4 c is similar to FIG. 4 b , and additionally includes lateral plate 20 .
  • FIG. 5 is a cross section view of a light armoured vehicle equipped with a device according to a fourth embodiment of the invention.
  • FIG. 6 is a perspective view of two chambers according to a fifth embodiment of the invention.
  • a light armoured vehicle 1 comprises a cab 2 fixed to a chassis 3 equipped with wheels 4 .
  • the inside of the cab can be accessed by a door 5 and it encloses seats 6 which are suspended from the cab roof by a support frame 7 .
  • Such an arrangement is classical and enables the seats to be isolated from the cab floor 8 , thereby protecting the crew from the effects on the floor further to a mine exploding.
  • a floor protection device 9 that comprises an armour plate 10 (for example, of steel) that is positioned at a distance from the cab floor 8 .
  • the plate 10 is fastened to the cab 2 by means of deformable linking means 11 .
  • at least one of the deformable linking means 11 (and preferably all the linking means 11 ) is constituted by a compartmented caisson.
  • FIGS. 1 and 2 a show that the armour plate 10 is fastened by three caissons 11 arranged on each side of the vehicle.
  • the caissons 11 are arranged under a lateral partition 2 a or 2 b of the cab 2 , such partition being substantially vertical.
  • the loads received by the armour plate 10 will be communicated to the cab, not to the floor 8 , but to the walls 2 a , 2 b that cannot be deformed so much.
  • FIG. 2 b shows a perspective view of a caisson 11 according to this first embodiment of the invention.
  • compartmented caisson we mean a substantially parallelepipedic structure that incorporates at least two walls 12 a , 12 b that will be arranged substantially perpendicularly to the armour plate 10 .
  • the walls 12 a , 12 b are integral with a lower wall 14 on which the armour plate 10 presses.
  • the walls 12 a , 12 b are furthermore integral with an upper wall 13 that presses on the cab 2 and enables the device to be fastened to the latter.
  • Each caisson 11 delimits an inner space 15 which is open laterally at each end of the caisson.
  • the walls 12 a , 12 b are thus substantially vertical and are furthermore dimensioned such that they buckle as a result of a shock transmitted by the armour plate 10 due to the detonation of an explosive device.
  • This dimensioning will be performed classically by calculation depending on the material of the walls 12 a , 12 b and the expected level of shock.
  • the buckling will be all the greater in that the wall is high with respect to its section.
  • the walls 12 a , 12 b delimit the inner space 15 of the caisson, they are furthermore also substantially perpendicular to the wall 12 a , 12 b in question of the cab 2 .
  • the upper wall 13 will have drill holes enabling the caisson 11 to be fastened to the floor 8 or to the cab 2 .
  • the lower wall 14 will additionally have drill holes enabling the armour plate 10 to be fastened to the caisson 11 .
  • the caissons 11 are made of steel (depending on the level of protection required, they could also be made of another material, for example aluminium or a composite).
  • the walls 12 a , 12 b ensure the rigidity of the caisson.
  • the loads are communicated by the plate to the caissons 11 , which retransmit them to the walls 2 a , 2 b of the cab.
  • the walls 12 a , 12 b will also deform by buckling. This deformation will consume part of the energy received but will above all attenuate the violence of the shock. Indeed, the energy of the explosion will be transmitted for a less brief duration which will reduce the stresses received by the vehicle and will attenuate the destructive effects on the cab.
  • FIGS. 3 a and 3 b show another embodiment in which a single caisson 11 is positioned on either side of the vehicle but which has a length that is substantially equal to that of the armour plate 10 .
  • partitions 17 parallel to walls 12 a , 12 b are arranged inside it (here there are four partitions).
  • the partitions 17 will, for example, be welded to the upper 13 and lower 14 walls of the caisson.
  • FIGS. 4 a and 4 b show another embodiment in which three caissons 11 are implemented, all integral with a same lower wall 18 .
  • the lateral walls 12 a , 12 b and upper wall 13 thus form a U-shaped structure which will, for example, be welded to the common wall 18 .
  • the shock received by the armour plate 10 will thus be transmitted to the wall 18 which will ensure the distribution of the shock over the different caissons 11 .
  • the caissons 11 will be positioned at a distance from one another. Two neighbouring caissons 11 are thus separated by a space 19 .
  • These spaces 19 may also house the organs of the vehicle, for example an exhaust silencer or batteries.
  • FIG. 4 c differs from FIG. 4 b in that the caissons 11 are also fixed to a same lateral plate 20 which here is perpendicular to the lower wall 18 .
  • the caissons 11 , the lateral plate 20 and the lower wall 18 form a chamber 21 .
  • the vehicle thus incorporates a chamber 21 on each side.
  • Each chamber constitutes a compact assembly incorporating the caissons 11 to absorb the shock wave transmitted by the armour plate 10 .
  • the lateral plate 20 constitutes another deformable element that completes the caissons 11 . It also enables the chamber to be closed thus insulating the inner spaces 19 from the exterior of the chamber. Openings will be advantageously provided in the lateral plate 20 which will carry closing covers to access the internal storage areas 19 .
  • FIG. 5 differs from the previous embodiment in that the caissons 11 , grouped into chambers 21 , incorporate a lateral plate 20 that forms an angle with respect to the armour plate 10 .
  • Such an arrangement gives an overall deflector shape to the device 9 , such shape ensuring a deviation of the blast received from a mine when the latter is in the vicinity of one of the rims of the armour plate 10 .
  • FIG. 5 shows that each chamber 21 is positioned such that it incorporates a plane upper rim 22 that extends towards the outside of the vehicle beyond the lateral partition 2 a , 2 b.
  • This rim 22 is formed here of part of the upper wall 13 . It constitutes a step to facilitate access to the vehicle.
  • FIG. 6 shows another embodiment of the chambers 21 according to the invention.
  • the lateral plate 20 of each chamber is once again inclined with respect to the armour plate 10 .
  • FIG. 6 shows that the lower wall 18 has two rows of holes to enable the armour plate (not shown in FIG. 6 ) to be fastened. Furthermore, the upper walls 13 ( 13 a , 13 b and 13 c ) of the caissons have holes to allow the passage of screws to fasten the device to the cab.
  • the caissons 11 are not all of the same shape.
  • the end caissons 11 a and 11 c have lateral walls 12 a , 12 b that are not parallel. At least one wall ( 12 a ) is, however, still perpendicular to the lower wall 18 (and to the armour plate).
  • the other wall 12 b is slightly inclined with respect to the lower wall 18 .
  • Such an arrangement is intended to adapt the external shapes of the front 11 a and rear 11 c caissons (and thus of the chamber 21 ) to the structure of the vehicle.
  • the walls 12 a and 12 b nevertheless ensure resistance to deformation for the caissons in question.
  • the caissons 11 incorporate an opening 24 in certain of their lateral walls 12 . These openings help to lighten the structure of the chambers and furthermore provide an access for the fastening screws enabling the upper faces 13 of the caissons to be joined to the vehicle cab.
  • FIG. 6 lastly shows that each chamber 21 here incorporates an upper rim 22 that completes the closing of the spaces 19 .
  • This rim 22 is parallel to the upper walls 13 of the caissons and is located on a plane slightly above the plane of the upper walls 13 . The rim thus forms a step giving access to the vehicle cab.
  • the caissons 11 are empty. It is possible, by way of a variant, to put a deformable material inside one or several caissons able to complete the absorption of the impact energy.
  • deformable foam for example metallic foam (such as aluminum foam) may be placed in the caissons.
  • Sand or else a metallic or composite material cell structure, like a honeycomb, may be put in the caissons 11 . It is also possible to install a shock absorbing material between the armour plate 10 and the lower wall 14 and/or between the upper wall 13 and the floor of the cell 8 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Body Structure For Vehicles (AREA)
US12/737,096 2008-06-12 2009-06-10 Floor protection device for vehicle cab Active 2030-10-12 US8960068B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0803278A FR2932556B1 (fr) 2008-06-12 2008-06-12 Dispositif de protection de plancher pour une cabine de vehicule
FR0803278 2008-06-12
PCT/FR2009/000684 WO2009153442A1 (fr) 2008-06-12 2009-06-10 Dispositif de protection de plancher pour une cabine de vehicule

Publications (2)

Publication Number Publication Date
US20110079134A1 US20110079134A1 (en) 2011-04-07
US8960068B2 true US8960068B2 (en) 2015-02-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US12/737,096 Active 2030-10-12 US8960068B2 (en) 2008-06-12 2009-06-10 Floor protection device for vehicle cab

Country Status (7)

Country Link
US (1) US8960068B2 (fr)
EP (1) EP2304380B2 (fr)
CA (1) CA2726643C (fr)
ES (1) ES2435432T5 (fr)
FR (1) FR2932556B1 (fr)
PL (1) PL2304380T5 (fr)
WO (1) WO2009153442A1 (fr)

Cited By (5)

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US20140216238A1 (en) * 2011-02-28 2014-08-07 Krauss-Maffei-Wegmann Gmbh & Co. Kg Vehicle, in Particular a Military Vehicle
US10401128B2 (en) * 2016-09-19 2019-09-03 General Dynamics Land Systems Systems and methods for underbody blast structure
US20190310055A1 (en) * 2018-04-09 2019-10-10 Pratt & Miller Engineering and Fabrication, Inc. Blast deflector
US11260835B2 (en) 2012-03-26 2022-03-01 Oshkosh Defense, Llc Military vehicle
USD966958S1 (en) 2011-09-27 2022-10-18 Oshkosh Corporation Grille element

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GB0818694D0 (en) * 2008-10-11 2008-11-19 Permali Gloucester Ltd Mine-resistant vehicle
WO2010090661A1 (fr) * 2008-10-24 2010-08-12 Alcoa Inc. Système d'absorption de l'énergie des souffles d'explosion
US8656823B2 (en) * 2009-06-05 2014-02-25 Fox Factory, Inc. Methods and apparatus for suspending a vehicle shield
US8413567B2 (en) * 2010-06-23 2013-04-09 International Truck Intellectual Property Company, Llc Vehicle armor
IL207241A0 (en) 2010-07-26 2011-01-31 Plasan Sasa Ltd Belly armor
SE536016C2 (sv) * 2011-09-23 2013-04-02 Bae Systems Haegglunds Ab Fordon utbildat för förhöjt minskydd
US8955859B1 (en) * 2011-09-27 2015-02-17 Oshkosh Corporation Isolated cab mounting system for an armored vehicle
EP2589919B1 (fr) * 2011-11-03 2016-09-28 FFG Flensburger Fahrzeugbaugesellschaft mbH Véhicule blindé exposé aux mines
CA2809527A1 (fr) * 2012-03-26 2013-09-26 Navistar Defense Engineering, Llc Plancher de vehicule
FR3013825B1 (fr) 2013-11-22 2016-05-13 Nexter Systems Vehicule blinde comportant un plancher plie
WO2016079842A1 (fr) * 2014-11-20 2016-05-26 三菱重工業株式会社 Blindage et véhicule
CN105737677A (zh) * 2014-12-09 2016-07-06 南京理工大学 装甲机动车辆***冲击波防护装置
US9890024B2 (en) 2016-04-08 2018-02-13 Oshkosh Corporation Leveling system for lift device
EA029991B1 (ru) * 2016-04-19 2018-06-29 Анатолий Андреевич ЛЕЙРИХ Транспортное средство
DE102017007430A1 (de) * 2017-08-05 2019-02-07 Bundesrepublik Deutschland, vertr. durch das Bundesministerium der Verteidigung, vertr. durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr Deformationselemente für militärische Ketten- oder Radfahrzeuge
FR3082298B1 (fr) * 2018-06-08 2022-01-14 Renault Trucks Defense Vehicule automobile blinde comportant une cellule de survie
FR3082299B1 (fr) * 2018-06-08 2022-01-14 Renault Trucks Defense Vehicule automobile blinde comportant une cellule de survie
SE544943C2 (en) * 2021-06-01 2023-02-07 Bae Systems Haegglunds Ab Mine safety arrangement and method for facilitating mine safe operation of a vehicle
CN113428088A (zh) * 2021-08-05 2021-09-24 北京汽车集团越野车有限公司 一种车身结构和具有其的车辆
US11498409B1 (en) 2021-08-13 2022-11-15 Oshkosh Defense, Llc Electrified military vehicle
US11505062B1 (en) 2021-08-13 2022-11-22 Oshkosh Defense, Llc Electrified military vehicle
US12030479B1 (en) 2021-08-13 2024-07-09 Oshkosh Defense, Llc Prioritized charging of an energy storage system of a military vehicle

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EP2304380A1 (fr) 2011-04-06
ES2435432T5 (es) 2016-11-22
EP2304380B1 (fr) 2013-09-11
US20110079134A1 (en) 2011-04-07
FR2932556A1 (fr) 2009-12-18
EP2304380B2 (fr) 2016-06-22
PL2304380T3 (pl) 2014-02-28
PL2304380T5 (pl) 2017-06-30
WO2009153442A1 (fr) 2009-12-23
ES2435432T3 (es) 2013-12-19
FR2932556B1 (fr) 2014-09-12
CA2726643A1 (fr) 2009-12-23
CA2726643C (fr) 2017-02-21

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